CN206262707U - A cyclone separator in a micropowder pulverization equipment for producing thermosetting powder coatings - Google Patents

Abstract

The utility model discloses a cyclone for producing among thermosetting powder coating's miropowder crushing apparatus, including barrel and inner bag, the inner bag is the drum, and it is installed and is located the barrel and extend to the barrel middle part at barrel top and its lower part, inner bag upper portion sets up the induced duct, barrel upper portion sets up the inlet pipe, and the bottom sets up row material pipe, the barrel outer wall sets up cooling interlayer, and this cooling interlayer is equipped with inlet tube and outlet pipe, the inlet tube sets up the position that the barrel lower part is close to row material pipe, the outlet pipe sets up on barrel upper portion. Because the cooling interlayer is added, cooling water is introduced during working, the temperature of powder at the discharge port can be obviously reduced, and the probability of powder agglomeration especially at the discharge port in the production process of the powder coating is reduced.

Description

A cyclone separator in a micropowder pulverization equipment for producing thermosetting powder coatings Isolator

technical field

The utility model relates to a cyclone separator, in particular to a cyclone separator in micropowder crushing equipment for producing thermosetting powder coatings.

Background technique

The production process of thermosetting powder coatings generally includes: weighing of raw materials, pre-mixing, stirring, melt extrusion, tablet cooling, powder crushing and classification. Among them, the pulverization and grading of the micropowder are mostly completed by the pulverizer. The process flow of the pulverizer is generally as follows: the preliminarily crushed flakes enter the pulverizer from the feeding port, and are sent to the grinding system to be ground and pulverized by high-speed operation. The pulverized powder is sucked into the cyclone separator, and is rotated and classified by the cyclone separator. , The finished powder products that meet the requirements fall into the packing box for packaging.

At present, during the normal production of powder coatings, the temperature of the powder coating powder coming out of the outlet of the cyclone separator is generally around 40 degrees or even higher. In this environment, the powder is prone to agglomeration, especially in the production of granular Agglomeration is more likely to occur when the powder coating has a finer diameter or a lower glass transition temperature of the resin in the powder, such as low-temperature curing powder coatings, ultra-fine powder coatings, and high-leveling powder coatings. Once the powder coating is agglomerated, it needs to be crushed and sieved again during the application process, which is very inconvenient; what is more serious is that the excessive pulverization temperature may even lead to premature curing (pre-curing) of the powder coating, which seriously affects the quality of the coating film .

Utility model content

The purpose of the utility model is to provide a cyclone separator used in the micropowder pulverization equipment for producing thermosetting powder coating.

The utility model provides a cyclone separator used in the micropowder pulverization equipment for producing thermosetting powder coatings, which includes a cylinder body and an inner tank, the inner tank is a cylinder, which is installed on the top of the cylinder body and its lower part is located in the cylinder body And extend to the middle of the cylinder, the upper part of the inner tank is provided with an air induction pipe, the upper part of the cylinder is provided with a feeding pipe, the bottom is provided with a discharge pipe, the outer wall of the cylinder is provided with a cooling interlayer, and the cooling interlayer is provided with a water inlet pipe and The water outlet pipe, the water inlet pipe is arranged at the lower part of the cylinder body close to the discharge pipe, and the water outlet pipe is arranged at the upper part of the cylinder body.

The upper part of the barrel is cylindrical, and the lower part is inverted cone.

The working process of the utility model is as follows: firstly, the water inlet pipe and the water outlet pipe of the cooling interlayer are connected with the cooling water device, and the cooling water device is opened, so that the cooling water enters the cylinder from the lower water inlet pipe and then flows out from the upper water outlet pipe. At this time, the flakes are ground and pulverized, sucked into the feed pipe by the induced wind and enter the cyclone separator. After being classified by the cyclone separator, the finer powder is taken away from the air outlet by the induced wind, and the remaining powder falls into the bottom of the cylinder. It is discharged from the discharge pipe and packed into boxes after being screened. During the falling process of the powder, the powder is cooled due to continuous contact with the cylinder, and at the same time affected by the cooling of the cooling water, the cylinder maintains a relatively low ambient temperature, thereby effectively reducing the powder temperature at the discharge port.

Compared with the prior art, the utility model has the following advantages:

(1) Due to the addition of a cooling interlayer, the utility model device can be fed with cooling water during work, which can significantly reduce the powder temperature at the discharge port, thereby reducing the powder agglomeration in the powder coating production process, especially at the discharge port. probability of occurrence of the phenomenon.

(2) Due to the addition of a cooling interlayer, the device of the utility model can reduce the phenomenon of powder adhesion to the inner wall of the separator cylinder, and facilitate the disassembly and cleaning of the crushing system.

(3) The implementation of the utility model is simple, and it can be realized by modifying the cylinder on the traditional cyclone separator.

Description of drawings

Fig. 1 is a schematic structural view of the cyclone separator of the present invention.

detailed description

Some specific examples are listed below to illustrate the utility model. It is necessary to point out that the following specific examples are only used to further illustrate the utility model, and do not represent limitations to the protection scope of the utility model. Some non-essential modifications and adjustments made by others according to the utility model still belong to the protection scope of the utility model.

As shown in FIG. 1 , the cyclone separator in the micropowder pulverization equipment used to produce thermosetting powder coatings includes a cylinder 4 and an inner tank 3 . The inner tank 3 is a cylinder, which is installed on the top of the cylinder 4 and its lower part is located in the cylinder 4 and extends to the middle of the cylinder 4. The upper part of the inner tank 3 is provided with an air induction pipe 1, and the upper part of the cylinder 4 is provided with a feed pipe. 2. A discharge pipe 5 is arranged at the bottom. A cooling interlayer 41 is provided on the outer wall of the cylinder body 4 , and the cooling interlayer 41 is provided with a water inlet pipe 6 and a water outlet pipe 7 . The water inlet pipe 6 is arranged at a position close to the discharge pipe 5 at the lower part of the cylinder body, and the water outlet pipe 7 is arranged at the upper part of the cylinder body 4 .

As shown in Figure 1, the induced draft fan is connected to the induced draft pipe 1. After the induced draft fan is turned on, the water inlet pipe 6 flows into the cooling water and forms a circuit with the outlet pipe 7. At the same time, the feed pipe 2 starts to supply powder under the force of the induced draft. After the powder enters the cyclone separator, it undergoes cyclone separation. After separation, the finished product with larger particle size falls down, and the finer particle size is sucked upward into the superfine powder cabinet. When the finished product moves in the falling cylinder 4, since the cooling interlayer 41 of the cylinder 4 is filled with chilled water, the entire interior of the cylinder 4 is a frozen space, so the powder temperature can be lowered to meet the product requirements in a short time. The temperature range of packaging greatly saves the time required for secondary cooling after the product comes out before packaging, improves production efficiency, improves product delivery rate, and saves manpower.

Claims (2)

1. A cyclone separator in a micropowder pulverization equipment for producing thermosetting powder coatings, comprising a cylinder and an inner container, the inner container is a cylinder, which is installed on the top of the cylinder and its lower part is located in the cylinder and faces the cylinder The middle part of the body extends, the upper part of the inner tank is provided with an air induction pipe, the upper part of the cylinder is provided with a feeding pipe, and the bottom is provided with a discharge pipe. And the water outlet pipe, the water inlet pipe is arranged at the lower part of the cylinder close to the discharge pipe, and the water outlet pipe is arranged at the upper part of the cylinder. 2. The cyclone separator in the micropowder pulverization equipment for producing thermosetting powder coatings according to claim 1, wherein the upper part of the cylinder body is cylindrical, and the lower part is in an inverted cone shape.